Nightmare Creatures II is an action-adventure, survival horror game for the Sega Dreamcast and Sony PlayStation released in 2000. It is produced by Kalisto.Nightmare Creatures 2 puts you in the shoes and straitjacket of Herbert Wallace, certified looney and angry test subject of Dr. Adam Crowley. Crowley is looking to invoke the spirit of an ancestor to endow himself with untold power, and it's up to Wallace to escape his asylum and stop Crowley.